-75.75% is the change from 334 to 81
Calculation steps:
[( 81 - 334 ) ÷ 334] x 100 = -75.75%
Formula
Percentage change = [(81 - 334) / 334] x 100
Subtract the new number by the original number
81 - 334 = -253
-253 ÷ 334 = -0.7574850299401198
-0.7574850299401198 x 100 = -75.75%